将RTP流连接到Kurento Media Server并使用WebRTC进行广播

Question

I am trying to create a WebRtc stream using Kurento Media Server and a hardware video encoder.

The video source is coming from Haivision Makito DVI . Makito is a hardware encoder which captures a FHD display using DVI cable, compresses using h.264 codec and streams in number of protocols options ( TS over UDP , TS over RTP , Direct RTP , Quicktime , RTMP ).

• So far I have managed to play a RTSP stream from vlc to Kurento I have implemented a RtpEndpoint -> WebRtc example which is published in this repository . (This proves Kurento works)

• The encoder's sdp can be accessed here - SDP .

• At first Kurento had crashed and throw an error saying "Could not join Multicast group: No such Device" which I solved using this post .

• Now, my server side and client side are working and communicating perfectly but no video can be seen. Currently I don't have a clue what is the problem.

• This is the SDP answer generated by Kurento after using rtpEndpoint.processOffer() :

`

v = 0
o =- 3718280759 3718280759 IN IP4 192.168.6.20
s = Kurento Media Server
c = IN IP4 192.168.6.20
t = 0 0
m = video 58116 RTP/AVP 96
a = fmtp: 96 packetisation-mode=1; sprop=parameter-sets=Z0IAKYxoB4ifl/8AAQABEAAAAMAQAAADyEAAAAAAA=,aM48gAAAAA=
a = ssrc:3106833799 cname:user3165393302@host-52028916
m = audio 34338 RTP/AVP
a = ssrc:396556932 cname:user3165393302@host-52028916

• Which of the above protocols does Kurento currently support?
• Do I place some commands in the wrong order?
• What am I doing wrong?

Please help,

Thanks

Answer 1

The problem was that Makito transmits video to a predefined fixed udp port.

To solved it I am extracting the udp port from the sdp answer generated by Kurento and configuring Makito 's destination udp port at runtime using a simple script.